Migrate the image styles to preserv the images.

Also, it was added the following things in the settings file to allow
the inline images:

$config['image.settings']['suppress_itok_output'] = TRUE;
$config['image.settings']['allow_insecure_derivatives'] = TRUE;

web/sites/default/settings.ddev.php

@@ -1,12 +1,5 @@
 <?php
 
-/**
- * @file
- * #ddev-generated: Automatically generated Drupal settings file.
- * ddev manages this file and may delete or overwrite the file unless this
- * comment is removed.
- */
-
 $host = "db";
 $port = 3306;
 
@@ -27,6 +20,16 @@ $databases['default']['default'] = array(
   'prefix' => "",
 );
 
+$databases['drupal7']['default'] = [
+  'database' => "drupal7",
+  'username' => "db",
+  'password' => "db",
+  'host' => $host,
+  'driver' => "mysql",
+  'port' => $port,
+  'prefix' => "",
+];
+
 ini_set('session.gc_probability', 1);
 ini_set('session.gc_divisor', 100);
 ini_set('session.gc_maxlifetime', 200000);
@@ -50,3 +53,11 @@ $settings['trusted_host_patterns'] = ['.*'];
 // better performance.
 $settings['class_loader_auto_detect'] = FALSE;
 
+$config['image.settings']['suppress_itok_output'] = TRUE;
+$config['image.settings']['allow_insecure_derivatives'] = TRUE;
+
+
+// This specifies the default configuration sync directory.
+if (empty($config_directories[CONFIG_SYNC_DIRECTORY])) {
+  $config_directories[CONFIG_SYNC_DIRECTORY] = '../config/sync';
+}